Vertical component of front derailleur motion?

I seem to recall that older front derailleurs had a greater vertical
displacement than I see in the newer models. Can anyone address this
matter?

Also, I need one that moves vertically as much as possible to effect a
.... awww, it's a long story; anyone know of a specific front
derailleur that has a long vertical movement?

Jones

On 12/12/2010 5:08 PM, !Jones wrote:
I seem to recall that older front derailleurs had a greater vertical
displacement than I see in the newer models. Can anyone address this
matter?

Also, I need one that moves vertically as much as possible to effect a
... awww, it's a long story; anyone know of a specific front
derailleur that has a long vertical movement?

Spacing your chainrings farther from the frame, e.g. with a longer
spindle, puts them in a different part of the FD's arc - and causes
greater rise of the FD cage between the inner and outer ring.

Likewise, an FD with the same arm length but with pivot farther from the
rings will give more vertical motion.

These may not be options, I know; perhaps it pertains to the cause of
your (unspecified) problem, though.

Mark J.